EP0287606A1 - Vehicule a deux roues du type sulky. - Google Patents
Vehicule a deux roues du type sulky.Info
- Publication number
- EP0287606A1 EP0287606A1 EP87906671A EP87906671A EP0287606A1 EP 0287606 A1 EP0287606 A1 EP 0287606A1 EP 87906671 A EP87906671 A EP 87906671A EP 87906671 A EP87906671 A EP 87906671A EP 0287606 A1 EP0287606 A1 EP 0287606A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fork
- panels
- vehicle according
- transverse plate
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62C—VEHICLES DRAWN BY ANIMALS
- B62C1/00—Types of vehicles
- B62C1/08—Racing vehicles, e.g. sulkies
Definitions
- the present invention relates to a two-wheeled vehicle of the sulky type, used in harnessed trotting races.
- vehicles of the sulky type essentially consist of a bridge, the central upper part of which is arranged to receive a seat for the driver while the wheels are fixed to the lower end of the lateral branches of said bridge.
- the bridge is in the form of welded metal tubes.
- this structure is reinforced by other tubes or bars, also welded.
- the sulky has a real ramification of tubes and bars, the manufacture and possibly repair of which are relatively complex.
- the numerous welds present in such tubular structures constitute as many potential rupture points which can be the cause of serious accidents.
- the present invention relates to a two-wheeled vehicle, of the sulky type, making it possible to remedy these various drawbacks.
- This vehicle which comprises a transverse plate, made of composite material, comprising forwards two lateral extensions constituting the stretchers or the start of the stretchers, said transverse plate being provided with a seat or means for fixing a seat for the conductor, and being assembled with two forks for fixing the wheels, is characterized in that each fork, made of composite material, comprises two facing side panels connected by at least two transverse spacer elements in the form of plates.
- the transverse plate may include at the rear a median extension, possibly inclined upwards, intended to receive the driver's seat.
- the transverse plate including its front and rear extensions, can be made in one piece, and can be provided with stiffening ribs also made of composite material.
- the single transverse plate can be replaced by two plates: a transverse plate proper, of substantially rectangular shape, and a longitudinal upper plate fixed by its middle part on said transverse plate using suitable fixing means.
- Said upper plate being adapted to receive a seat for the driver at its rear end and further comprising, towards the front, two extensions in the form of longitudinal arms intended for fixing removable stretchers.
- the rear end, intended to receive the seat is preferably inclined upwards, with respect to the plane of the middle part.
- the transverse plate can be replaced by two half-plates arranged symmetrically with respect to the longitudinal axis of the vehicle, each half-plate resting on one of said forks.
- the transverse plate and the upper plate are made, as before, of composite material and can be reinforced using ribs of appropriate rigidity.
- the front lateral extensions can constitute the stretchers and be made in one piece with the transverse plate.
- the front extensions can also be shorter and be provided at their front end with fixing means for removable stretchers. They can be fitted, on the inside, with a conventional toe clip, but, as will be seen below, this is not always necessary.
- An important characteristic of the vehicle is that the wheel forks consist of two side panels provided with two transverse spacer elements in the form of plates holding the two panels apart from one another so as to leave between the two panels sufficient space. for the passage of the wheel.
- the wheel forks therefore have a structure of the "formwork" type which not only ensures sufficient rigidity of the assembly, but also has other advantages which will be mentioned below.
- the composite materials constituting the trays and forks of the sulky of the invention are preferably composite materials of the sandwich type, that is to say materials consisting of a core (for example rigid synthetic foam or so-called nest structure bees) reinforced externally by a laminate made of fibers or fabrics bound with an appropriate resin.
- the core is for example made of polyvinyl chloride foam or polyurethane.
- the laminates (in the form of fibers, mats or fabrics) are produced for example using glass, carbon or kevlar fibers (aromatic polyamide fiber sold by du Pont de Nemours).
- the resin which serves both as a binder for the laminate and as an adhesive for fixing the laminate to the core of the composite, is a conventional resin such as, for example, an epoxy resin, a polyester resin or a phenolic resin.
- the side panels of the forks have a substantially triangular shape and are fixed to the underside of the transverse plate by one of their sides, the apex opposite to said side constituting the bottom end of the panel.
- This lower end is provided with means for fixing the wheel axle, for example a fitting.
- the triangular panels have an elongated shape towards the front. In this case, it is necessary that the front extensions of the transverse plate (rear part of the stretchers) are located in the plane of the wheels so that the contact of the panel with the transverse plate is made, beyond said plate itself, with the underside of the part posterior of the stretcher.
- the two spacer elements can be located respectively at the front and at the rear of the side panels, between the two panels of the fork and perpendicular to them, for example along the front sides and back of said panels. These spacer elements may undergo an appropriate cut to allow the passage of the wheel when they are vertical thereof.
- a fairing element in the shape of a rounded "V", connecting the front sides of the two panels of the fork, this fairing being produced for example from impregnated glass fabric resin.
- the front spacer element a suitable section to constitute a front fairing of the wheel.
- a rear fairing element joining the rear sides of the two side panels and enveloping the upper part of the wheel.
- each. side panel of the forks has a trapezoidal shape, the large base of the trapezium being fixed on the underside of the transverse plate and of the corresponding front extension, while the small base constitutes the lower part of the panel, it being understood that the front end of the large base is located further forward than the front end of the small base.
- the small base comprises, near its rear end, means for fixing the wheel axle, for example a fitting.
- the spacer elements can be placed, as before, at the front and rear of the panels.
- a first spacer element located (as before) along the front sides of the panels and a second element retractor inclined backwards from its lower side fixed on the first spacer element to its side upper fixed on the underside of the front extension of the transverse panel.
- a formwork of triangular section is thus produced at the front end of the fork which can constitute a housing for the driver's feet after cutting an appropriate opening, in front of the second spacer element, in the interior side panel.
- the feet of the conductor can thus bear on the first spacer element, while the second spacer element, located behind the foot, protects the latter against splashing water or mud.
- the forks can receive a front and rear fairing, it being understood that the front spacer element can have an appropriate section to constitute the front fairing.
- the front extensions of the transverse plate must be located substantially in the plane of the wheels.
- the lower end of the second spacer element is fixed to the first spacer element at a sufficient distance from the seat so that "the driver can place his feet as indicated above.
- the second spacer element can for example be substantially perpendicular to the first spacer element .
- FIG. 1 shows a perspective view of the chassis of a vehicle according to the invention, with a plate in two parts;
- FIG. 2 shows a rear view (without the upper plate) of the frame of Figure 1;
- FIG. 3 is a side view of this vehicle mounted on wheels
- FIG. 4 is a rear view of a fork
- FIG. 5 is a sectional view along V-V of Figure 4.
- FIG. 6 is a partial sectional view along VI-VI of Figure 1 showing the detail of the attachment of a fork on the transverse plate;
- FIG. 7 is a schematic sectional representation, given by way of example, of the structure of the laminate constituting the transverse plate provided with a stiffening element;
- Spacer elements similar to those which have just been described, making it possible to produce toe clips, can also be used in the case of triangular fork side panels, provided that said triangular panels have an elongated shape towards the front, that is to say that the front edge of these side panels joins the underside of the stretcher sufficiently in front of the wheels, and that the birth of the stretchers comes out in the plane of the wheels.
- FIG. 8 shows a perspective view of another embodiment, with a tray in one part
- FIG. 9 is a side view of another embodiment, with trapezoidal fork side panels and stretchers made in one piece with the transverse plate;
- FIG. 10 is a top view of the sulky of Figure 9;
- FIG. 11 is a cross-sectional view, at the fitting, of a wheel fork fixed to the lateral end of the transverse plate of the sulky of Figure 9;
- FIG. 12 is a partial view in longitudinal section along XII-XII of Figure 10;
- FIG. 13 is a cross-sectional view along XIII-XIII of Figure 12.
- the chassis shown in FIG. 1 comprises a transverse plate 1 on which is fixed, for example by means of bolts, the upper plate 2.
- the positioning of the plate 2 on the plate 1 can be facilitated by means of pins centering (not shown).
- the plate 2 is extended forward by two arms or rails 3,4.
- the front end of the side members has an extra thickness 5.6.
- the side members also have a stiffness rib 7.8. We see that the rear end 2a of the upper plate 2, intended to receive one or two seats, is tilted slightly upwards in order to improve the position of the driver and his possible passenger.
- the transverse plate 1 comprises a stiffening element 16 (rib) permatting to improve the rigidity of said plate.
- rib stiffening element
- Two similar lateral stiffening elements 16a, 16b are also provided at the rear of the upper plate ( Figures 2 and 3).
- the side panels such as 10,10a of a fork are held using front and rear spacer elements 18a and 18b forming a spacer and having a shape adapted to leave the passage of the wheel.
- the fork (11, 11a) is provided with similar front and rear spacer elements 17a and 17b.
- the fittings such as 12 include a housing 12a for the wheel axle ( Figures 4. and 5). Each fork such as 11, 11a is fixed to the transverse plate thanks to the angles 19,20.
- the angle iron 19 is fixed to the panel 11a of the fork by means of a smooth metal insert 22 allowing the passage of the screw 23.
- the angle iron 20 is fixed to the panel 11 in a similar manner with the screw 21.
- the angles 19 and 20 are fixed to the plate 1 respectively using the screws 23, 24 thanks to the threaded metal insert 25, 26 fixed by gluing in the recess 27, 28.
- the transverse plate 1 and the stiffness rib 16 are produced in the form of panels of synthetic rigid foam represented in crossed lines (polyvinyl chloride, polyethylene, polyurethane, etc.) covered with layers of glass fabric (for example 2 layers of glass fabric 0.3mm thick symbolized by a dashed line) and reinforced at the ends and at the connections between the panels by a carbon fiber fabric (for example two layers of 0.2 mm d thickness symbolized by a solid line).
- a similar technique is used for the production and joining of the various structural elements of composite material.
- the laminated elements are produced according to conventional techniques, for example using a one-sided mold.
- the fabric is applied to the rigid foam and fixed using a resin applied with a brush, for example an epoxy resin comprising an accelerator and a usual hardener.
- a resin applied with a brush for example an epoxy resin comprising an accelerator and a usual hardener.
- the assembly is then subjected to a heat treatment at a temperature generally below 120 ° C.
- the sulky represented in FIG. 8 is produced with a single plate 31 comprising towards the rear a median extension 32 and extended towards the front by two longitudinal arms 33, 34.
- the part 32 is slightly inclined upwards, at an angle of 15 ° relative to the plane of the plate 31.
- the longitudinal arms 33, 34 are adapted at their front end to receive removable stretchers.
- the plates 31, 32 and the arms 33, 34 are provided on their upper face with stiffness ribs 35, 36, 37, 38.
- Each wheel fork has a base such as 39, two side panels such as 41, 42, and two front and rear spacer elements such as 40a (front spacer element) and 40b (rear spacer element not visible in FIG. 8).
- the fixing holes of the seat are represented by crosses on the rib 36.
- the fixing holes of the forks are represented by crosses on the plate 31.
- the fixing holes of the removable stretchers are represented by crosses at the front end of the side arms 33.34. All the elements of the sulky shown in Figure 9 are made of composite laminate material.
- the panel 39 is first assembled with the spacer elements such as 40, then the side panels 41 and 42 are assembled on the assembly thus formed. The whole is then fixed on the underside of the plate 31, for example using bolts and nuts.
- the sulky represented in FIGS. 9 to 13 comprises a transverse plate 43 produced in one piece with the stretchers 44,45.
- the forks each have two trapezoidal side panels such as the external 46a and internal 46b (not visible) panels of the fork located on the left side of the vehicle, and the external 47a and internal 47b panels of the fork located on the right side.
- Each fork is provided with a front fairing 48, 49 and rear 50.51.
- the dividing lines between the panel 46a and the rear fairing 50 or front 48 are indicated in FIG. 9 for the understanding of the drawing but are not visible on the finished sulky, after the laying of the laminated coverings.
- the rear fairing does not allow the wheels to protrude.
- the side panels are provided with fittings such as 52, 53a, 53b for fixing the wheels.
- the foam panels 43, 47a, 47b are assembled by gluing with an Araldite adhesive (registered trademark for an epoxy adhesive).
- the bonding zones are indicated by a thickened line in FIG. 11.
- the various perpendicular assemblies are reinforced by triangular profiles such as 54, 55, 56 of glued foam.
- the fittings 53a, 53b are glued into housings made in the foam of the panels 47a, 47b.
- the resin-coated fabrics symbolized by a solid line surrounding the foam structure, are applied to this foam structure and cover the internal faces and external of the forks and the tray as well as the entire surface of the stretchers.
- the wheel fittings are partially covered, on their upper part, by these impregnated fabric coverings.
- Each fork such as (47a, 47b) is provided with a first rectangular spacer element such as 57 disposed along the front sides of the fork ( Figure 12), from the underside of the stretcher 45 to the base of the side panels 47a, 47b.
- a second rectangular spacer element 58 extends between the side panels 47a, 47b, perpendicular to the first spacer element 57.
- the second spacer element, the base of which rests on the spacer element 57, is therefore inclined backwards from its base to its upper end which coincides with the lower face of the stretcher 45.
- the spacer elements like the other elements are made of rigid foam and are covered with impregnated fabrics symbolized by continuous lines in Figure 12. The two spacer elements therefore define a triangular section formwork at the upper front end of the fork.
- this formwork can act as a toe clip.
- the shape of the cutout is shown in dotted lines in FIG. 9.
- the rear edge of the cutout is made along the front face of the spacer 58.
- the lower edge of the cutout is made along the upper face of the spacer 57.
- the upper edge of the cutout is parallel to the edge lower of the stretcher.
- FIG. 13 which represents a section of the formwork for toe clips, the overlaps of the internal and external tissues have been represented by solid lines.
- the various junctions are softened by corners made of putty loaded with glass fiber such as 59, 60, 61. These corners facilitate the coating using fabrics, avoiding right or acute angles.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87906671T ATE56404T1 (de) | 1986-10-03 | 1987-10-05 | Zweiradfahrzeug, insbesondere sulky. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8613821A FR2604679A1 (fr) | 1986-10-03 | 1986-10-03 | Vehicule a deux roues du type sulky |
FR8613821 | 1986-10-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0287606A1 true EP0287606A1 (fr) | 1988-10-26 |
EP0287606B1 EP0287606B1 (fr) | 1990-09-12 |
Family
ID=9339531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87906671A Expired - Lifetime EP0287606B1 (fr) | 1986-10-03 | 1987-10-05 | Vehicule a deux roues du type sulky |
Country Status (5)
Country | Link |
---|---|
US (1) | US4993728A (fr) |
EP (1) | EP0287606B1 (fr) |
AU (1) | AU8039687A (fr) |
FR (1) | FR2604679A1 (fr) |
WO (1) | WO1988002328A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992002395A1 (fr) * | 1990-07-30 | 1992-02-20 | Willdamo Pty. Ltd. | Dispositif de securite pour sulky de course de trot attele |
NO176471C (no) * | 1992-05-29 | 1995-04-12 | Volotech As | Sulky |
GB2292358A (en) * | 1994-08-18 | 1996-02-21 | Carbon Design Lp | Sulky made from composite materials |
US5857686A (en) * | 1998-03-23 | 1999-01-12 | Millington; Howard George | Offset sulky |
US20110233883A1 (en) * | 2010-03-26 | 2011-09-29 | Watson Curtis G | Sulky |
WO2017201582A1 (fr) * | 2016-05-26 | 2017-11-30 | Haynes Brandon | Châssis de sulky |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US378837A (en) * | 1888-02-28 | Ephraim heeeington | ||
GB137685A (en) * | 1919-03-25 | 1920-01-22 | Ivan Paul Millar | Improvements in and relating to the mudguards and forks for the fornt wheels of cycles and the like |
US3415533A (en) * | 1966-12-21 | 1968-12-10 | Shirley A Bliss | Sulky |
US3771810A (en) * | 1971-10-22 | 1973-11-13 | R Barnett | Harness racing sulky |
FR2265602B1 (fr) * | 1974-03-29 | 1977-03-04 | Ramond Louis | |
DE2748437C2 (de) * | 1977-10-28 | 1984-07-26 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Deichselwagen, insbesondere Sulky |
US4313611A (en) * | 1979-06-01 | 1982-02-02 | Heinze Jr Frank D | Sulky having adjustable fulcrum point |
-
1986
- 1986-10-03 FR FR8613821A patent/FR2604679A1/fr active Pending
-
1987
- 1987-10-05 AU AU80396/87A patent/AU8039687A/en not_active Abandoned
- 1987-10-05 US US07/218,124 patent/US4993728A/en not_active Expired - Fee Related
- 1987-10-05 WO PCT/FR1987/000379 patent/WO1988002328A1/fr active IP Right Grant
- 1987-10-05 EP EP87906671A patent/EP0287606B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO8802328A1 * |
Also Published As
Publication number | Publication date |
---|---|
US4993728A (en) | 1991-02-19 |
EP0287606B1 (fr) | 1990-09-12 |
FR2604679A1 (fr) | 1988-04-08 |
AU8039687A (en) | 1988-04-21 |
WO1988002328A1 (fr) | 1988-04-07 |
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